'Contra Costa County' definitions:
Contra Costa -- U.S. County in California
From: Gazetteer 2000
Name :
Contra Costa -- U.S. County in California
Population (2000) :
948816
Housing Units (2000) :
354577
Land area (2000) :
719.946043 sq. miles (1864.651611 sq. km)
Water area (2000) :
82.203697 sq. miles (212.906588 sq. km)
Total area (2000) :
802.149740 sq. miles (2077.558199 sq. km)
Located within :
California (CA), FIPS 06
Location :
37.942423 N, 122.060886 W